Left And Right Front Bass Speaker -R21- / -R23-, Removing And Installing, 9VS/8RF And 9VD+EP1: Installing

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2021 Audi S8, 2021 Audi A8 e Quattro, 2021 Audi A8 Quattro, 2020 Audi S8, and 2020 Audi A8 e Quattro. However, it is still accessible from the selected car via links, so may be relevant.